Enhance your total body toning workout with the Stamina(R) AeroPilates(R) Power Cord, which offers 40% more resistance than one regular black Stamina(R) power cord for added intensity during your workouts. Increased Intensity 40% more resistance than one regular black power cord For use with any Stamina(R) AeroPilates(R) Reformer Key Specs Dimensions: 38.5'' L x 1.25'' W Product Weight: 1 lb. Additional Details Materials: Elastic cord, nylon cover, plastic knob Manufacturer's Warranty: 90 days Includes 2 power cords